2009

6.3

2012

6.2

2016

0.0

2011

0.0

2016

4.7

2015

5.8

2002

0.0

2004

3.8

1990

7.4

2010

2.9

1995

6.5

2006

8.4

2008

0.0

2016

0.0

2014

8.0

1986

6.0